NAME

       checkdigits - check or generate check digits

VERSION

       This document describes checkdigits v1.3.3

SYNOPSIS

         checkdigits [Options] command [[number] ...]

         options:

          -algorithm alg - use this algorithm

         commands:

          check           - check validity of number containing checkdigit
          checkdigit      - return checkdigit belonging to number
          complete        - return number completed with checkdigit
          list_algorithms - list all known algorithms
          describe        - describe the given algorithms

DESCRIPTION

       This is a command line program that may be used to compute any checkdigit known by the
       perl module Algorithm::CheckDigits.

OPTIONS AND COMMANDS

   Options
       -algorithm alg

       Compute checkdigits according to algorithm alg. Instead of providing the algorithm with
       this option, you may choose to rename the program to the name of the algorithm or to
       "checkdigits-" followed by the name of the algorithm.

       You must provide the algorithm with any of these means or the program will not compute any
       checkdigit.

   Commands
       check

       checkdigit

       complete

       When called with this command, the program will take the number compute the appropriate
       checkdigits and return the complete number with checkdigits.

       describe

       Called with this command, the program will list the algorithm handles given on the command
       line with a short description or the word "unknown" for any unknown algorithm. See command
       list_algorithms for a list of known algorithms.

       list_algorithms

       Called with this command, the program will list all known algorithms together with a short
       description and then exit.

DIAGNOSTICS

CONFIGURATION AND ENVIRONMENT

       At the moment the program doesn't recognise any environment variables.

       The algorithm to use may be predefined by renaming the program to the name of the
       algorithm or to "checkdigits-" followed by the name of the algorithm.

AUTHOR

       Mathias Weidner "mamawe@cpan.org"

LICENCE AND COPYRIGHT

       Copyright (c) 2010-2020, Mathias Weidner "mamawe@cpan.org".  All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself. See perlartistic.

DISCLAIMER OF WARRANTY

       BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE,
       TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF
       ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
       WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO
       THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE
       DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT
       HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY
       THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
       INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
       SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
       LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY
       OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
       SUCH DAMAGES.